Process for purifying silicon carbide micro powder for linear cutting
A technology of silicon carbide micropowder and purification process, which is applied in the field of purification and purification of compounds, which can solve the problems of metal impurities and oil contamination, and achieve the effects of reducing the content of impurities, high efficiency, and simple operation
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Embodiment 1
[0013] (1) Feeding process: Take 100kg of processed silicon carbide micropowder into the water tank, add 250L of water and stir evenly, heat to 40°C, stir while heating and measure the temperature;
[0014] (2) Carbon removal process: add 5ml of flotation oil and 1ml of kerosene to the above solution, record the liquid level scale, then continuously stir at a constant temperature of 40°C for 30min, then let it stand for 40min and then drain half of the water;
[0015] (3) Surfactant addition process: a. Add 1L of surfactant, add water to the scale line, keep uniform for 10min, continue to heat up to 40°C, stir while heating, keep the temperature at 40°C for 30min, then stir for 1h, and let stand 40min, drain about 75% of the water; b. Add water to the mark, stir when adding water, and heat to 40°C, keep the temperature for 10min, continue stirring for 30min, let stand for 40min, drain 75% of the water; repeat b process 3 times; foaming test, no oil on the surface;
[0016] (4...
Embodiment 2
[0019] (1) Feeding process: Take 1.2 tons of processed silicon carbide micropowder into the water tank, add 3m 3 Stir the water evenly, heat to 50°C, stir while heating and measure the temperature;
[0020] (2) Carbon removal process: Add 30ml of flotation oil and 6ml of kerosene to the above solution, record the liquid level scale, then stir continuously at a constant temperature of 50°C for 40min, and then let it stand for 40min to drain half of the water;
[0021] (3) Surfactant addition process: a. Add 12L surfactant, add water to the scale line, keep uniform for 20min, continue to heat up to 50°C, stir while heating, keep the temperature at 50°C for 30min, then stir for 1.5h, stand still Set aside for 40 minutes, drain about 60% of the water; b. Add water to the scale line, stir when adding water, and heat to 50 ° C, keep the temperature for 30 minutes, continue stirring for 60 minutes, let stand for 40 minutes, drain 60% of the water; repeat b Process 3 times; foaming t...
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